F1 teams will get to try out the final configuration of 2014 tyres at Jerez in Spain this week, with Pirelli suggesting that the new products will be very different to last year's.
However, a bespoke tyre for the tricky conditions of testing in winter has been introduced as well.
"The 2014 tyres are just as different to their predecessors as the 2014 cars, with the majority of our preparation work having been carried out by using advanced data simulation, as well as real on-track testing," said Pirelli motorsport director Paul Hembery.
"Last year, the teams lost some pre-season running due to excessively cold conditions in Spain: we even saw some ice on the track at one point.
"In order to combat this, we have developed a special 'winter' version of the hard compound. This will be used for the Jerez test only and it is designed to work effectively even in cold conditions."
Jerez test line-up
Follow the Jerez F1 test as it happens with AUTOSPORT Live from Tuesday morning
The Formula 1 world reacted with surprise when it learned Lewis Hamilton’s long-awaited new Mercedes deal guarantees his presence on the grid only until the end of 2021. Both parties claimed publicly they were happy with the arrangement but, asks MARK GALLAGHER, is there more to it than that?
Driver-turned-DJ Jaime Alguersuari lost his love for motorsport when he was booted out of Formula 1 just as he was starting to polish his rough edges. Having drifted from category to category then turned his back on racing altogether in 2015, he’s come full circle and is planning a return in karts for fun
While Mercedes struck back against Red Bull by topping the times at Imola on Friday ahead of the Emilia Romagna Grand Prix, the overall picture remains incredibly close. Despite having a possible edge this weekend, the reigning Formula 1 world champion squad is not taking anything for granted...
Mercedes may find itself leading the drivers' and constructors' standings after Lewis Hamilton's victory in the Bahrain Grand Prix, but it is well-aware that it came against the odds, with Red Bull clearly ahead on pace. Here's what the Brackley team must do to avoid its crown slipping
For too long, F1's richest teams have justified being able to spend as much as they want because that's the way they've always conducted their business. STUART CODLING says that's no reason not to kick a bad habit
It's been a tough start to Sebastian Vettel's Aston Martin F1 career, with a lack of pre-season testing mileage followed by an incident-packed Bahrain GP. But two key underlying factors mean a turnaround is not guaranteed